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Solve 11x + 13 = 112

The solution of 11x + 13 = 112 is x = 9.

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The lines y = 11x + 13 and y = 112 meet at x = 9468101214406080100120140160180x = 9y = 11x + 13y = 112
The lines y = 11x + 13 and y = 112 meet at x = 9. The solution of the equation is the x-coordinate of the point where the two sides are equal.

How to work it out

  1. 1

    The goal is to get x alone. Undo the operations in the opposite order: first the addition, then the multiplication.

    11x+13=11211x + 13 = 112
  2. 2

    Subtract 13 from both sides:

    11x+13−13=112−13 ⇒ 11x=9911x + 13 - 13 = 112 - 13 \ \Rightarrow\ 11x = 99
  3. 3

    Divide both sides by 11:

    11x11=9911 ⇒ x=9\frac{11x}{11} = \frac{99}{11} \ \Rightarrow\ x = 9
  4. 4

    Check: put x = 9 back into the equation.

    11⋅9+13=99+13=112✓11\cdot9 + 13 = 99 + 13 = 112 \checkmark
LaTeX source of the formulas on this page
\[ 11x + 13 = 112\ \Rightarrow\ x = 9 \]
\[ 11x + 13 = 112 \]
\[ 11x + 13 - 13 = 112 - 13 \ \Rightarrow\ 11x = 99 \]
\[ \frac{11x}{11} = \frac{99}{11} \ \Rightarrow\ x = 9 \]
\[ 11\cdot9 + 13 = 99 + 13 = 112 \checkmark \]

Trying values of x in 11x + 13 = 112

x11x + 13Equals 112?
790no
8101no
9112yes
10123no
11134no

Questions

What is x in 11x + 13 = 112?

The solution of 11x + 13 = 112 is x = 9.

How do you solve 11x + 13 = 112?

Subtract 13 from both sides to get 11x = 99, then divide both sides by 11 to get x = 9.

How do I check the answer?

Replace x by 9: 11(9) + 13 = 112, which is 112.

Similar equations

    Solve 11x + 13 = 112: x = 9 (steps and check) | WordGPT